Perhaps you should try some spelling variations:
thanh tuong » thanh thuong, thanh tung, thanh huong
hieu nganh » vien nganh, hiem ngan, hieu manh
tuong cua » truong cua, huong cua, thong cua
cua thong » cua thuong, cua khong, cua tong
hoc hieu » hoc thieu, hoc hien, doc hieu
cong dan » cong tan, huong dan, cong dong
cong san » cong tac
than cau » phan cau, than cap, thanh chau
toan cau » toan cao, toan ban, toan tap

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hieu nganh - thanh tuong cua thong ((cong dan) or (cong san)) ((than cau) OR (toan cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hieu nganh - thanh tuong cua thong ((cong dan) OR (cong san)) ((than cau) OR (toan cau)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hieu nganh - thanh tuong cua thong ((cong dan) or (cong san)) ((than cau) OR (toan cau))".
• Adding a wildcard symbol may retrieve word variants: hoc hieu nganh - thanh tuong cua thong ((cong dan) or (cong san)) ((than cau) OR (toan cau))*.